Evidence based survey of the distribution volume of ethanol: Comparison of empirically determined values with anthropometric measures.

•Blood-alcohol calculations are often required in forensic science casework and commonly involve the Widmark equation.•Anthropometric equations can tailor Widmark’s rho-factor for a given individual.•Results using anthropometric equations were in reasonably good agreement with rho-factors determined empirically.•A regression equation involving the person’s age, height and body weight was the best model for male subjects.•Consideration of the person’s BMI gave more accurate results for females.